diff options
author | Yongqiang Niu <yongqiang.niu@mediatek.com> | 2021-07-16 09:32:21 +0300 |
---|---|---|
committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2021-07-25 03:25:45 +0300 |
commit | 78d1783c32434564bf4d31fae7fffaacd03ba080 (patch) | |
tree | 9bda11e4a739fde0f6deba6d301ca4308ff53b5c /drivers/gpu/drm/mediatek | |
parent | ef668f2790e966c43ff7e13cbedce98ff9da1f7b (diff) | |
download | linux-78d1783c32434564bf4d31fae7fffaacd03ba080.tar.xz |
drm/mediatek: Separate aal sub driver
MT8173 aal has gamma function but mt8183 aal has no gamma
function, so separate aal sub driver to have a private
data for different SoC.
Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Tested-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/mediatek')
-rw-r--r-- | drivers/gpu/drm/mediatek/Makefile | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/mediatek/mtk_disp_aal.c | 166 | ||||
-rw-r--r-- | drivers/gpu/drm/mediatek/mtk_disp_drv.h | 9 | ||||
-rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 42 | ||||
-rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_drv.c | 6 | ||||
-rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_drv.h | 1 |
6 files changed, 186 insertions, 41 deletions
diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile index dc54a7a69005..29098d7c8307 100644 --- a/drivers/gpu/drm/mediatek/Makefile +++ b/drivers/gpu/drm/mediatek/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 -mediatek-drm-y := mtk_disp_ccorr.o \ +mediatek-drm-y := mtk_disp_aal.o \ + mtk_disp_ccorr.o \ mtk_disp_color.o \ mtk_disp_gamma.o \ mtk_disp_ovl.o \ diff --git a/drivers/gpu/drm/mediatek/mtk_disp_aal.c b/drivers/gpu/drm/mediatek/mtk_disp_aal.c new file mode 100644 index 000000000000..fb212e960595 --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_disp_aal.c @@ -0,0 +1,166 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021 MediaTek Inc. + */ + +#include <linux/clk.h> +#include <linux/component.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/of_irq.h> +#include <linux/platform_device.h> +#include <linux/soc/mediatek/mtk-cmdq.h> + +#include "mtk_disp_drv.h" +#include "mtk_drm_crtc.h" +#include "mtk_drm_ddp_comp.h" + +#define DISP_AAL_EN 0x0000 +#define AAL_EN BIT(0) +#define DISP_AAL_SIZE 0x0030 + + +struct mtk_disp_aal_data { + bool has_gamma; +}; + +/** + * struct mtk_disp_aal - DISP_AAL driver structure + * @ddp_comp - structure containing type enum and hardware resources + * @crtc - associated crtc to report irq events to + */ +struct mtk_disp_aal { + struct clk *clk; + void __iomem *regs; + struct cmdq_client_reg cmdq_reg; + const struct mtk_disp_aal_data *data; +}; + +int mtk_aal_clk_enable(struct device *dev) +{ + struct mtk_disp_aal *aal = dev_get_drvdata(dev); + + return clk_prepare_enable(aal->clk); +} + +void mtk_aal_clk_disable(struct device *dev) +{ + struct mtk_disp_aal *aal = dev_get_drvdata(dev); + + clk_disable_unprepare(aal->clk); +} + +void mtk_aal_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_disp_aal *aal = dev_get_drvdata(dev); + + mtk_ddp_write(cmdq_pkt, w << 16 | h, &aal->cmdq_reg, aal->regs, DISP_AAL_SIZE); +} + +void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state) +{ + struct mtk_disp_aal *aal = dev_get_drvdata(dev); + + if (aal->data && aal->data->has_gamma) + mtk_gamma_set_common(aal->regs, state); +} + +void mtk_aal_start(struct device *dev) +{ + struct mtk_disp_aal *aal = dev_get_drvdata(dev); + + writel(AAL_EN, aal->regs + DISP_AAL_EN); +} + +void mtk_aal_stop(struct device *dev) +{ + struct mtk_disp_aal *aal = dev_get_drvdata(dev); + + writel_relaxed(0x0, aal->regs + DISP_AAL_EN); +} + +static int mtk_disp_aal_bind(struct device *dev, struct device *master, + void *data) +{ + return 0; +} + +static void mtk_disp_aal_unbind(struct device *dev, struct device *master, + void *data) +{ +} + +static const struct component_ops mtk_disp_aal_component_ops = { + .bind = mtk_disp_aal_bind, + .unbind = mtk_disp_aal_unbind, +}; + +static int mtk_disp_aal_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mtk_disp_aal *priv; + struct resource *res; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->clk = devm_clk_get(dev, NULL); + if (IS_ERR(priv->clk)) { + dev_err(dev, "failed to get aal clk\n"); + return PTR_ERR(priv->clk); + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + priv->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(priv->regs)) { + dev_err(dev, "failed to ioremap aal\n"); + return PTR_ERR(priv->regs); + } + +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0); + if (ret) + dev_dbg(dev, "get mediatek,gce-client-reg fail!\n"); +#endif + + priv->data = of_device_get_match_data(dev); + platform_set_drvdata(pdev, priv); + + ret = component_add(dev, &mtk_disp_aal_component_ops); + if (ret) + dev_err(dev, "Failed to add component: %d\n", ret); + + return ret; +} + +static int mtk_disp_aal_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &mtk_disp_aal_component_ops); + + return 0; +} + +static const struct mtk_disp_aal_data mt8173_aal_driver_data = { + .has_gamma = true, +}; + +static const struct of_device_id mtk_disp_aal_driver_dt_match[] = { + { .compatible = "mediatek,mt8173-disp-aal", + .data = &mt8173_aal_driver_data}, + {}, +}; +MODULE_DEVICE_TABLE(of, mtk_disp_aal_driver_dt_match); + +struct platform_driver mtk_disp_aal_driver = { + .probe = mtk_disp_aal_probe, + .remove = mtk_disp_aal_remove, + .driver = { + .name = "mediatek-disp-aal", + .owner = THIS_MODULE, + .of_match_table = mtk_disp_aal_driver_dt_match, + }, +}; diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h index cafd9df2d63b..86c3068894b1 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h @@ -9,6 +9,15 @@ #include <linux/soc/mediatek/mtk-cmdq.h> #include "mtk_drm_plane.h" +int mtk_aal_clk_enable(struct device *dev); +void mtk_aal_clk_disable(struct device *dev); +void mtk_aal_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt); +void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state); +void mtk_aal_start(struct device *dev); +void mtk_aal_stop(struct device *dev); + void mtk_ccorr_ctm_set(struct device *dev, struct drm_crtc_state *state); int mtk_ccorr_clk_enable(struct device *dev); void mtk_ccorr_clk_disable(struct device *dev); diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index 75bc00e17fc4..99cbf44463e4 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -32,9 +32,6 @@ #define DISP_REG_UFO_START 0x0000 -#define DISP_AAL_EN 0x0000 -#define DISP_AAL_SIZE 0x0030 - #define DISP_DITHER_EN 0x0000 #define DITHER_EN BIT(0) #define DISP_DITHER_CFG 0x0020 @@ -48,8 +45,6 @@ #define UFO_BYPASS BIT(2) -#define AAL_EN BIT(0) - #define DISP_DITHERING BIT(2) #define DITHER_LSB_ERR_SHIFT_R(x) (((x) & 0x7) << 28) #define DITHER_OVFLW_BIT_R(x) (((x) & 0x7) << 24) @@ -190,36 +185,6 @@ static void mtk_ufoe_start(struct device *dev) writel(UFO_BYPASS, priv->regs + DISP_REG_UFO_START); } -static void mtk_aal_config(struct device *dev, unsigned int w, - unsigned int h, unsigned int vrefresh, - unsigned int bpc, struct cmdq_pkt *cmdq_pkt) -{ - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); - - mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs, DISP_AAL_SIZE); -} - -static void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state) -{ - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); - - mtk_gamma_set_common(priv->regs, state); -} - -static void mtk_aal_start(struct device *dev) -{ - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); - - writel(AAL_EN, priv->regs + DISP_AAL_EN); -} - -static void mtk_aal_stop(struct device *dev) -{ - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); - - writel_relaxed(0x0, priv->regs + DISP_AAL_EN); -} - static void mtk_dither_config(struct device *dev, unsigned int w, unsigned int h, unsigned int vrefresh, unsigned int bpc, struct cmdq_pkt *cmdq_pkt) @@ -247,8 +212,8 @@ static void mtk_dither_stop(struct device *dev) } static const struct mtk_ddp_comp_funcs ddp_aal = { - .clk_enable = mtk_ddp_clk_enable, - .clk_disable = mtk_ddp_clk_disable, + .clk_enable = mtk_aal_clk_enable, + .clk_disable = mtk_aal_clk_disable, .gamma_set = mtk_aal_gamma_set, .config = mtk_aal_config, .start = mtk_aal_start, @@ -505,7 +470,8 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp, return ret; } - if (type == MTK_DISP_BLS || + if (type == MTK_DISP_AAL || + type == MTK_DISP_BLS || type == MTK_DISP_CCORR || type == MTK_DISP_COLOR || type == MTK_DISP_GAMMA || diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index b46bdb8985da..67a585e5fac5 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -532,11 +532,12 @@ static int mtk_drm_probe(struct platform_device *pdev) private->comp_node[comp_id] = of_node_get(node); /* - * Currently only the CCORR, COLOR, GAMMA, OVL, RDMA, DSI, and DPI + * Currently only the AAL, CCORR, COLOR, GAMMA, OVL, RDMA, DSI, and DPI * blocks have separate component platform drivers and initialize their own * DDP component structure. The others are initialized here. */ - if (comp_type == MTK_DISP_CCORR || + if (comp_type == MTK_DISP_AAL || + comp_type == MTK_DISP_CCORR || comp_type == MTK_DISP_COLOR || comp_type == MTK_DISP_GAMMA || comp_type == MTK_DISP_OVL || @@ -636,6 +637,7 @@ static struct platform_driver mtk_drm_platform_driver = { }; static struct platform_driver * const mtk_drm_drivers[] = { + &mtk_disp_aal_driver, &mtk_disp_ccorr_driver, &mtk_disp_color_driver, &mtk_disp_gamma_driver, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h index 637f5669e895..3e7d1e6fbe01 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h @@ -46,6 +46,7 @@ struct mtk_drm_private { struct drm_atomic_state *suspend_state; }; +extern struct platform_driver mtk_disp_aal_driver; extern struct platform_driver mtk_disp_ccorr_driver; extern struct platform_driver mtk_disp_color_driver; extern struct platform_driver mtk_disp_gamma_driver; |